Dumping-car-door-operating mechanism.



1. M. ROHLHNG. DUMPING CAR DOOR OPERATING MECHAN'SIVI.

APPLICATION FILED OCT. 25. I9I.

Patented May I, 191,.

4 SHEETS-SHEET I n'. IVI. RUHLHNG. DUMPING CAR DOOR OPERATING MECHANISM.

APPLICATION FILED OCT25| 1915.

Patented May 1, 1917. 4 HEETS-SHEET 2 Ix IVI. ROHLFING. DUIIIPING CAR DOOR OPERATING MECHANISIVI.

PPLICATION FILED OCT. 25| i915.

www?,

J. M. ROHLFING.4 DUMPING CAR 0.00K OPERATING MECHAMSM.

APP ICATIO FILED OCT. 25| |915. y Lgfgfyg', L N Patented May 1, MHT.'

` recetas.

nlllihddlll@ Fitlifhllil JOHN' M. ROHLFING, S'l. LQUIS, IVIAISSDUEI, ASSIGNOR TO li/IERICN CAR AND FOUNDRY COMPANY, OF ST. LOUIS, MISSGURI, A CGRPORATXN OF NEW JERSEY.

DUMPNG-CAB-DUOR-OPERATING MECHANISM.,

Specification of Letters Patent.

Patented May il, teint.,

application flied OctoberZ', 1915. Serial No. 57,748.

To allfilcgrom t may concern: l

Be 1t knownthat L JOHN M. Roumaine., residing at St. Louis, Missouri, and being citizen of the United States, have invented.

certain new and useful 4Improvements in l)umping-Car-Door-Uperating Mechanism, of which the following is a uil, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and to use thesame, reference being had to the accompanying drawings, which illustrate the preferred form of the invention, though it is to be understood that the invention is not limited to the exact details of construction shown and described, it is obvious that various modifications thereof will occur to persons skilled in the art.

ln said drawings: l

Figure il is'a composite view or a car einbodying the novel 'features of theinvention,`

being in side elevation at theA right and a central longitudinal vertical sect-ion at the lett.

.Figa 2 is a plan view of a portion of the cail with a greater part of the flooring removed, to show the operating mechanism, the doors beingr closed. l

Fig'. 3 is a similar view of the corresponding parte at the opposite side or" the hopper, one of the doors being shown in open position.

Fig. 4 isjin enlarged section taken on line 4.-31. of Fig. 2 and shows the position of the parts when the-doors are closed.

Fig. 5 is a similar section, but of the cor- .responding parts on the oppositeside of the hopper being taken on line 5--5 of Fig. 3 and .showing the position of the parts when the doors are open.

Fig. 6 is a side elevation of the transmission rod arrangement between the side and the intermediate sills, a portion of the side sill beingbroken away to show the transmission gearing in the position assumed when the doors are closed. I

Fig. 7 is a vertical transverse section .through approximately one half of the car showing the locking 'mechanism and the lwinding arrangement; and

Fig. S is a perspective view of the door lock supporting bracket which is arranged between the draft sills and under the sloping end sheet of the hopper.

The present invention relates to car door operating mechanism, and is of a type that is Well adapted for use in drop bottom l,gondola or ore cars, and it has for an object a provision of means tor lockingl and support- 'ing doors which are hinged near or at the at the completion ot the winding and l-oclring operations. y Another object is to securely lockthe doors in place and to provide for a simultaneous operation of locks disposed on opposite sides of the doors. y y

Insurance against unintentional actuation of the door locking means is provided for,

Aand the design precludes the accidental release'of the doors due to swaying or other movements of the ear during the course of its travel.

The actuation of the 'door operating means is conveniently and safely accomplished from the sides of the car, avoiding the danger of accidents to men engaged in discharging the lading.

Other' advantages will appear hereinafter and are parts 01' the present invention.

Referring specificallyv to the parts, the chains l0 for raising the doors are adapted to be wound upon a. shaft ll located outside of y the hopper and toward one end of the car,

"and disposed. transversely thereof.

In Fig. 2, Winding shaft 11 is shown as broken away shortly after passing beyond the central longitudinal plane of the car, but y it is to be understood that'it extends to the opposite side said car, and at that end is provided with such a hand-Wheel 51 as i disclosed on the illustrated end.

Outside ofone of the draft sills li., there is a ratchet Wheel 50 mounted on Winding shaft 11, which ratchet Wheel is'adapted to loe engaged by a paivl'ei) secured to a payvl shaft 47 parallel and in proximity to said' vanid.irigg; shaft. Pawlvshaft "extends'to the side sills B and has its ends rotatably mounted therein and adjacent the side sills are operating handles 4:8 secured to paWl shaft 4:7, said handles being weighted to maintain pawl el-Q in engagement with ratchet wheel 50. When the chains` 10 are wound up on shaft 11 to bring the doors into their closed position, pawl 49, when the pawl shaft is in the position shown, prevents the rotation of shaft 11 in a chainunwinding direction. Other means, of course, may be substituted for raising the doors wit-hout in any way affecting the operation of the door operating means as a whole. but the means shown and described provide an economical and satisfactory way of doing so.

In the form of car illustrated, each door 55 is hinged at 56 to an intern'iediate sill C parallel with said sill B and separated therefrom by spacers E, and when closed the free edges of said doors 55 meet along the longitudinal center line of the car.

On the opposite sides of each door near the free ends or meeting edges, are door supporting brackets 12 rigidly' secured to said doors. When the doors are closed each pair of door supporting brackets 12 on the same side of the doors is engaged by a door latch 13, which is pivotally secured to an oscillatory link or hanger 14C by pin 46, the hanger being rotatively mounted on a .pin 15, which pin is supported in a bracket 16 secured to the draft sills A.

The d oor latches 13 are provided with forward extensions 17 adapted to occupy positions under the retaining shoulders 1S of the iloor-su1 po1ting brackets 12 when the latches 13 are* ad fanced toa door-supporting position shown in Fig. le of the drawings.

If it be desired to discharge lading said door locks 13 are retracted as shown in Fig. 5, this being accomplished by applying a suitable wrench to the non-circular end 57 of shaft 19 projecting outwardly from the side sill B, as shown in Fig. 2, it being understood that the opposite end of shaft 19 is provided with a similar projecting noncircular end 57.

Upon turning shaft 19 through the use of said wrench a crank 20 secured to said shaftwill be partly rotated to swing a link 21., pivotally connected by pin 35 to the other end of crank 20, from the position shown in li'ig, il: to that illustrated in Fig. 'llink 21 being pivotally connected to heel portion 22 ofthe door latch 13 by pin 36, said door latch 13 will be swung away from the door supporting brackets 12 to the position shown in Fig. 5, releasing one side of each door That the opposite sides of said doors'majy* he simultaneously released. another crank 27 is mounted upon shaft 19 between the center and intermediate sills B and C, respectively, and to the onter end oil. crank 27 is pivota'lly connected a trans mission rod 2G, the other end of which is pivotally connected to 'a lever arm 31v extending from a gear sector 23.

ltleshing with gear sector 23 is another gear sector 29 mounted upon shaft 19lwhi'ch is located on the side of the hopper opposite that adjacent shaft 1.9. Shaft 19 :is associ.- ated with door-locking mechanism similar to that controlled by shaft 19, and has secured thereto a crank 20 pivotally connected by pin 35 to link 21, which in turn is pi voted by pin 36 to door latch 13 suspended from hanger 14, the latter being pivotally hung from pin 15 supported in another bracket 1G, which is secured to the draft sills A at the other end of the car. lt is apparent. therefore, that a rotary movement given to shaft 1,9 will not only oscillate the crank 2O on that shaft to advance or retract door lock 13, but will also similarly1 actuate crank 27, moving transmission rod 2G to cause gear sector to drive gear sector 25.), whereby shaft 19 is simultaneously partially revolved with shaft 19' to swing crank 20 carried by it, `thereby advancing or retracting door latch 13 controlled by shaft 19n in unison with the door latch 13 controlled from shaft 19.

The transmission arm 2G may be adjusted as to its length by means of a right and left hand threaded turnbuckle 31, or it may he continuous as desired.

The transmission gear 28, previously referred to` is mounted upon a short shaft 32. journaled in spaced brackets 33, which also receive the end of shaft 19aL upon which is mounted the gear sector 29)` the' gears being thus held in meshed relation. The lengths of transmission arm 27 and arm 34 of trans mission gear sector 23, and the pitch radii of the gear sectors 28 and 29, the lengths of the door latch 13 and door lock crank 2O are so proportioned as to transmit to shaft 19l the power required to complete the closing operation of the doors and to support them in closed position. y

In each of the door locking mechanisms,

link 21 is provided with extensions 23 and 24. which serve as stop shoulders and are adapted to engage, respectively, the shaft 19 and the shoulder portion of the latch .13, whereby complete rotation of shaft 19 and consequently shaft 19a is prevented. 1f the forward extensions 17 of both door latches 13 are under the shoulders 18 of the door supporting brackets, and shaft 19 is given a partial rotation in a clockwise direction,l shaft 19L will. through the agency of gear sectors 28 and be given a. contra-clockwise partial rotation. and the door latches 13 on both lsides of the door will be withdrawn as shown in Figf 5, whereupon the doors will drop by gravity to a lading-discharging position. as indicatori in dotted lines inllig. 7 provided pawl 4l) has irst been disengaged from fatchet ivheel 50, throughthe turning oilE pawl shattel'? by its handle 48. r

To return the doors to their closed position, and lock them in place, the handwvheel 51 may be rotated, causing chain shaft 11 to revolve and Wind thereupon the door raising chains 10, thereby littingthe doors to their closed position, or substantially so. The pawl shaft L17 having been revolved to throw paivl si@ into engagement with ratchet wheel 50 of the chain shaft, said doors are prevented from falling1 back to their open positions when the operators grip upon hand-wheel 51 is released, and the door lock operating shalt 19 may then be partially re volved in a contra-clockwise direction.

Responding to such movement of shaft 19, crank 27 mounted on. the latter operates transmission rod 26 to actuate gear sectors 28 and 29, the latter imparting to shaft 19 a artial clockwise rotation..A @ranks A29 secured, respectively, to shafts 19 and 19a swing downwardly and toward the'hopper from such positions as are indicated inllig. 5 tothose indicated by Fig. f1..l A Links 21, door latches 13 and hangers 11i of the door locking mechanisms on'opposite sides ot the doors then assume the positions indicated in Fig. Il. the forward extension 1'? ofeach door latch 13,v being projected under the shoulders 13 of the brackets 12. Due to the door lifting chains being attached only to the brackets on one side of the door, the

sides ofthe door remote from the points of chain attachment may tend to slightly sag, but the forward extension 17 of the door latches 13 have a Wedging relation with the under side of retaining shoulders 18 of the door brackets 12, and as said door latches 13 are brought to their ultimate positions, the doors are drawn homeeectinga complete closure of said doors..

'Iliff bringing the door latch 13 of each door locking mechanism to its ultimate position,

pin connecting crank 20 with link 21 isy carried beyond a line'extending` through the centers of pin 36 and shaft" to prevent an accidental vvitlid awal of said door latch 13 from its door-supporting position. A

Any effort on the part of thelheel portion 22 of door latch 13 to rise and lift link 21 would be` neutralized by the tendency of the pivot 35' to revolve about the shaft 19 in a contra-clockwise direction, as viewed in Fig.

4, causing the extension 23 of link 21 to bear against shaft-19, thus ellectnally locking all of the parts against any movement tending` to release the doors.`

, The same actionnfonld take place in 'the other operating mechanism yon the opposite side ofthe hopper, except, of course, pin 35 woiild tend to move in a clockwise direction, nor canbany possible swaying of link 21, due

to train movement. cause the complete re- 'traction oit the forward extensions 1( of latch 13 from its position under' the retaining shoulders 1S of brackets 12, inasmuch as the shorter link or hanger 1/1 would tend to 7g draw the forward extensions more lirmly againstsaid shoulders 18 of the door-supporting; brackets.

`lilith the arrangements shown, the power applied to shafts 19 and 19 is delivered' to 75 the under side of retaining shoulders 13 of the. door-supporting brackets 12 With ,greatly increased intensity., this multiplication of power being rendered possibleby the system ot leverage employed. a@ The door lock fulcrum pin` d6 being nearer to the end ot the forward extension 17 orn door latch 13 than it is to the heel 22 thereof, transfers only a portion of the load topin 36 for transmission to shaft 19, as l' lock the doors.

Referring to Fig. 8, the hanger pins 15, previously referred to and shown inother figures, are seated Within the sockets 3G, so projecting inwardly from the side Walls 33 of brackets lo, the pin seat portions and the frontwall portions ol said sockets terminat ing short of each other, to provide a vsocket 37 -for the door lock hanger. The rear Wall o5 of the socket is offset in the path ot' movethusA diminishing the ell'crt redriired to tmf ment of hanger 14, as shown at 39, to clear the same and merges with the semi-cylindrical anti-friction roller seat 40 for an antifriction roller member Ll1 (shown in Fig. i0@ 2), Which is positioned within said-seat l10 to provide a bearing for the door chains 10. Anti-friction roller 4:1 is pnt into place by inserting the same through an opening- 42 in one of the side walls 3S of the bracket 16, 305' carry the weightof the doors, the Weight ol` the lading being sustained by said door hinges 5G and door latches13l lty is apparent that l have devised a car door operating mechanism peculiarly adapt` ed to those types of oars in which centerV sills are not present., and Whose hopper con1 struction renders it' dillicult to apply ordi? nary door-raising and locking ine-ans. Fur thermore, 4when 'it is only convenient or possible to raise the doors from a. single side 'in such manner as to produce a sagging' ol the door portions vremote from that side, resulting in al dlstortive closure, the arrangen 13o nient ot tbe looks and tlieir sin'iultaneous operation is suoli as to produce an ultimate uniform closure. blaid loelrs are oliaraoterized by swinging parts producingl what may be termed a svfinfr lool;D and tlio swin "inv b; f Y, b

:parts are connected in tbe form of a oli-ain ot linlniggge.` tbe oud members ot which are osoillativel'v slu'iported.

The looking meebanisms are conveniently located in protected and normally unused positions in tbe ear illustrated, but, of bourse, v,may be ditlierently disposed to tbe best advantage in other types oi oars.

vWhat l claim is:

l. lu combination in a dump ear, opposino` doors adapted to elose vagainst eaoli other` doonraisingr means. members on oaoli side ot said doors, swine door .looks snpported lrom the ear Al'rainintr to movein a direotiou other than that ot tlie paths of said doors` each adapted to engage tbe meint` bers on opposing; doors to liold tbe latter closed and means for operating said door locksu 2. lfn combination in a dump oar, opposing doors, door-raising' means adapted to close said doors against each other, members ou eaeli side oi said doors. siviiig' door looks supported from the oar framing adapted to simultanemisl)7 ooine into ooperative relation Witli the men'ibers ou opposing doors after the latter have been raised and to maintain said doors elosed and operating means ior said door looks.

3. ln Combination in a dump car, opposing doors hinged near tbe sides of tbe car,

members on each side oi1 said doors, door- ,aising means connected 'with a plurality ol said members and adapted to elose the doors against each other, swing door locks supported from the 'zar 'framing to swing in and parallel with the plane in Wliieli said doors meet, and adapted to engage said members after the doors have been raised to n'iaintain them closed, and operating means for said door looks.

4. ln combination in a dump ear, opposing doors hinged near and adapted to swing 'toward the sides of a oar on opening, menibers on each side of said doors, door'raisine; means connected to the members at one side of said doors, door looks supported from the car framing adapted to be projected under portions of tbe members on both sides of the doors after the operation of said doorraising means and to Carry said doors into a tight closure and opera-ting means for said door looks.

5. ln combination in a dump ear, doors adapted to swing toward eaeli other in closing, attaolunont devious connected to tbe sides ot said doors, and door-raising means comprising a Winding' slia'tt supported b v tlu` sills oi tbe rar` means `for rotating tbe same trom the side oi.E tbe ear, ilexible ai, Leesvoer members secured to said attachment devices4 and adapted to be Wound on said shaft and retro-action prevention and permitting," means for said shaft, and door-loelring IDQITIS.

6. ln combination in a dump ear opposed hinged doors adapted to close against eaeb other, members mounted on each door to oppose tliose on the opposite door, dobreraising means and door-looking means provided `with members having portions adapted to be projected between and into engagement with opposing door members to maintain said doors closed.

7. In combination in a dump oar, draft sills at opposite car ends, a hopper inter posed therebetween and extending therebelow, doors hinged near the car sides adapted to close near the transverse center or' the car, dooiraising means, swing door .looks on opposite sides of said hopper sup-- ported from the adjacent draft sills and adapted to maintain said doors Closed and means for simultaneously operating said door looks.

8. In combination in a dump ear, draft sills at opposite ear endsVa hopper interposed therebetween, doors adapted to elose near the transverse center of the ear, door raising means, swing door looks' for main taining; the doors closed supported from the draft sills, said hopper being also inter* posed between said looks, and means for simultamviusly operating said door locks.

E). In combination in a dump oar, doors adapted to elose near the .transverse center ont' the car, doo1raising means, door looks located also near the transverse car center and provided With members movable lone'i tudinally of the car to maintain a plurality of said doors closed, and operating means 4for said locks.

verse center oit the oar, door-raising means,

door-locks located also Vnear the transverse oar center and on opposite sides oi said doors and provided with members movable into position rtosupport said doors, transmission means for actuating the door-loelrs simultaneously and doorloot; operating means.

'12. ln combination in a. dump oar, spaced draft sills at opposite ear ends, doorsinterposed between the sets of draft sills and ist necesa? doors, door-raising means and 'door loclcs between said spaced 'draft sills-.comprising hanger brackets, oscillator hangers deendin'cf therefrom roclnib eA door latches.

carried by said hangers and means for projecting said latches into engagement 'with Said doo side4 members. l

13. ln combination in a damp car, doors, Aadapted to' close against each other at the..`

center of the car, door-raising means, spaced 'draft sills adjacent the sides of said doors,

door-.locks comprisinghangerbracketssecnred to and between said draftv sills, oscillatory. hangers depending therefrom, latches pivotally connecteclto the hangers, oscillatory cranks and links connectingsaid cranks .and latches and means for moving said cranks to project said latches to hold said doors closed. l

14. ln combination'in a dump car, sills at the car sides, doors hinged thereto adapted to close near the center of the car, door raising means, draft sills on opposite sides of said doors, door locks supported from each set of draft sills, transmission means oper ably connecting the diiferent door locks and supported from and lying adjacent to the sills at `the car sides and means for actuating said door locks operatingly connected with one of them.

15. In combination in a dump car, spaced sills at the car sides, doorshinged thereto r. ii a adapted to close near the center of the car, door raising means, centrally located door locks on opposite sides of said doors, means extending transversely of the car for actuating each door lock, transmission. meansl located between the sills at a side of the car operably connecting' the individual door. lock actuating means and means for operat#Y ing one of said individual actuating means to cause the operation of all of said actuating means.

lo. ln combination in a dump ear, longitudinal sills near `the carsides, centrally closing doors hinged thereto, door-raising means, door-supporting locks on opposite sides of said doors, an actuating shaft for each lock and transmission mechanism paralleling said sills and connecting' said shafts comprising a crank a'liixed toene shaft, suitably proportioned gearing connected with another shaft and means connected with said crank adaptedto impart motion to said gearing.

1'?. ln combination in a dump car, spaced longitudinal sills at the car sides, centrally closing doors hinged thereto, door-raising means, doorssnpporting locks on opposite sides of said doors, an actuating-shaft for each loci, transmisl ion mechanism located between a pair f said spaced sills comprising a crank aliwd to one shalt anda gear member secured to another, a second gear member meshing with the first gear member, and an adjustable tranen sion member connecting said crank and second gear member and means supporting said gears in proper relation to each other.

18. ln combination in a dump car, longitudinal sills near the car sides, centrally closing' doors hinged thereto, door-raising means, door-supporting locks on opposite sides of said doors, an actuating,l shaft for alleling said .sills comprising a cra-nir ailixed 4 to one shaft and a gear sector secured to the other, second gear sector meshing with the first and provided/With a crank, anda transmission member. vconnecting both of said cranks. Y

19. lnccombination in a dump car, centrally closing doors, members secured to the each locl and transmission mechanism parsides thereof, door-raising means, spaced longitudinal sills at the middle of the car,

entendin away from the sides of said doors, dor loc cs between said sills each com` prising a hanger bracket secured tol the sills, a hanger swung. therefrom, a door A latch pivoted to said hanger and adapted to engage said members i'vhenthc doors are closed, an oscillatory crank and a link connecting said latch and crank and actuating means for said crank', said hanger having increased binding against said brackets upon a tendency to move to an unlocking position when there is no corresponding movement of said actuating means.

20. ln combination in a dump car, centrally closing doors, door-raising means and a door lock comprising a suitably supported swinging hanger, a. door latch pivotally connected thereto, a crank, a link connecting" said crank and latch and a detent on said linlz, and an operating shaft connected With said crank and oscillative in opposite directions to advance or .retract said latch to or from a doonsupporting position, movement of said latch unaccompanied by an intentional movement of said shaft causing' said link detent to engage' said shaft and to prevent the Withdrawal of said latch,

21.111 combination in a dump car, spaced sills, centrally closing doors extending transversely or said sills, door-raising means, a .lnacltet'betwcen said sills com prising ivalls attached to the latter, transverse 'wall portions forming a seat for a hanger pin and being interrnptedand od'- set to form a hanger socltet and keeperreceiving portions and a retaincr'for it guide for the door-raising means, a hangenpin, keepers therefor, an oscillatory hanger, .a door latch, operating means therefor and a guide for said doo1-raising"means'. i i

22. in combination ina dump car, spaced sills, centrally closing doors extending transversely of said sills, flexible doormaar/or raisiingI members, a bracket between said sills comprising walls attached to the latter, transverse portions for supporting a hanger and a holder for an antisiriction guide 'for said flexible members, a hanger pivotally suspended from the hanger-sup* porting portions, a latch carried thereby adapted to hold the doorsiclosed and an anti-it'riction `guide adapted to be inserted into said holder through an aperture in one ot said walls, said holder having an open portion to expose said guide, and means for operating said latch and flexible members.

Q3. In combination in a dump lar, opposing doors adapted lo close against each other, door-actuating means, suitablyl supported swing door locks adapted to approach each other to engage the opposing doors to hold the same closed and operating means for said door locks.

24. In combination in a dump car, a set of oppositely opening` doors, doo '-acluating means, suitably supported swing,` door locks oijnpositely movable hmgitndinally of the car to and from said doors and adapted to support the same when oppositely moved and door lock operating means.

35. In combination in. a dump car, opposing;` doors. door-actuating means adapted to move said doors toivard each other, swing,r door locks, comprising;` pivoted latches and means tor rocking` the same, said latches being adapted to engage the opposing doors a't'ter the latter have been partly closed and to maintain the doors closed and operating means for swinging said door locks and rocking' said latches.

2G. In combination in a dump ear, doors and dooraetuating means, swing door locks adapted to be projected in a dirertion other than that ofthe path ot' the doors and to engage the latter after they have been partly closed and to torre said doors to and inaintain them in fully closed positions and door lock operating' means.

27. In combination in a dump ear. doors and means adapted to raise the same into a non-uni'lornily distortive closure. door locks adapted to engage said door.y and to cause the latter to be uniformly closed and to so maintain said doors. i

28. In combination in a dump'rai'.opposing doors adapted to close towardthe trans` verse center of the rar, doo f-aetual'ing means adapted to close the doors against each other` swing` door locks adapted to engage said doors al'ler the same have been raised and to maintain them closed and operating .meansl tor said door locks.

29. In combination in a dump ear` opposing; doors adapted to close against each other, doo --artuating means, swing door locks located interiorly oit the car sides and provided with members movable longitudinally ot' the ear to support said. opposingl doors in elosed position and means tor actuating said locks operable from the car side.

30. In combination in a dump car, doors,

i'loor-actuating` means, swing door locks operablel in opposite directions and provided with members movable oppositely longitndinally of the car to support said doors in closed position and operating means for said door locks.

31. In combination in a dump car, a plurality7 of doors, dooreactnating means, separate door locks supported froniied members and adapted to engage said doors, transmission means operably connect-ing the separate locks to reversely actuate them to lock or to unlock said doors, and means for operating said locks and transmission means.

32. In combination in a dump car, doors provided with hinges the pivotal axes of which extend longitudinally of the oar, door locks spaced longitudinally.oit the ear adapted to maintain said doors closed, an actuating device 'tor each door lock, transinission n'iechanism operably joining1 said lock-aetnatingdevices and means for ope atingthe latter and said transmission mechanism.

33. In combination in a dump car, doors adapted to close toward the car center, door- :lirtuatingv means, longitudinally extending sills, spaced door locks supported from said sills and adapted to maintain said doors closed, transmission means operably conneetingthe door looks and means for actuating said door locks operatingly connected with one of them.

3st. In combinatirm in a dump car, doors, door-actuating means, lined ear structure portions, separate door locks supported from the latter to simultz'ineously operate in different directions, longitudinally mov.

able Vtransmission means operably connecting said door locks and means connected to one ot' the door locks adapted to actuate all ot them.

In combination in a dump car, doors, door-actuating means` fixed car structn re portions. separate svvinp; door locks supported therefrom adapted to maintain said doors in elosed position, transmission mechanislin operable to reverselyV operate and to synchronize the movements olf-Y said door locks during an actuation thereof in one direction and means 'lor actuating said door locks and transmission mechanism.

Elli. In combination in a dump car, doors. (hair-actuating means.v centrally located door locks on opposite sides ot said doors, means extending transversely oil the ear tor actuating each door lock, transmission means near a side oit the car operably connecting indillo vidual door loch-aetuating means and means i for operatingone ot said individual actnat i essere? ing' means to canse it to operate tbe revniainder ot said door lmfleactnating means.

tioned gearing connected with another sliai't and means connected .with said crank and adapted to impart motion to said gearing.

2:58. .in combination in a dump car, spaced longitudinal sills, doors provided with hinges parallel thereto, door-'actuating means, door-supporting,- locks on opposite sides of said doors, an actuating shaft for each lock, transmission mechanism comprisinga crank aiiixed to one shaft and a gear member secnredto another, a second gear member meshingwith the first gearmember and an adjustable transmission member connecting said crank and second gear member' and means supporting said gears in meslied relation.

39. 'ln combination in a dump car, doors liaving'liinges extending longitudinally of the cai', diiiorlactnatinp; means, door-supporting locks each comprising an oscillatory hanger, a 'swinging latch adapted to move longitudinally ci the car to snpportingiy engage a door and means for swinging said latch out orA engagement Witlisaid door. l

4U. ln combination in a dump car, doors, door-actuatingn means, a swinging latch oscillatively connected therewith and adapted to move in a direction other than that of the path of said doors to snpporting'ly engage the latter andy vlinkage for actuating saidlatch and operating means connected with said linkage.

41. ln combination in a dump car, doors,

door-actuating means, door locks each corn-- prising an oscillatory hanger, a swinging latch roclm'bly connected therewith' and adapted to move in a direction other than that of the path or said doors to supportingly engage the latter and linkage for actuating said latch and means operable from ne car side lor actuating said linkage.

42. In combination in a dum car., doors, door-actuating means., door loc rs each com prising a vibratory latch, means for sapporting and guiding said latch and latchoperating linkage., and operating :means for said' linkage adapted to' canse the same to move saidlateh into a door-supporting position from which vliriintentionalretroaction of said latch is in opposition to that move jment yoi saidlinkage-operating 'ineens 1"-- quired'to Withdraw saidlatcli from the doorsnpporting position, said linkage-operating means being adapted to canse the Withdrawal of said latch.

48. in combination a dump car, doors,

Idool?, a door loclr eoinprisi Ling latch, an oscillator' ii Vlaenger support and a pinos member conn een lo' door-actuating means, door locks comprising suitably supported swinging door latches and latch actnatiop; linkage, lockable lioli ngegoperating l means W1and iotizr'iociaoie ineens in said linie vc and latches adapted to restrict siiid linkapepper-ating means to rocking; movenients.

sil. in combination in a dninp car, a doorV dooractuating ineens, a door locli: comprising a'cliaiin of linkage both ends of wlliei ,are oscillatively supported, a door-supportn ing extension on one iinlr and means ici actuating saidL linkageoliain to move said es tension into and out of a door-supporting position.

45. ln combination in a dump car, ancor, l.'

dooractnating means, a door loclr comprising; a `chain of linkage both ends of .vlncl:V are oscillatively supported, a door-supporting extension on one link and interlockablo portions on some ol the linkage elements ff adapted to limit the movementot said link-- age chain and .means lor actuating the lat ter 'to move said extension into and out of a door-supporting position.

s6. in combina-tion in a car having a door, a door lock comprising a latch having a doorengaging portion, an oscillatory hanger pivotally connected with said latch, aiixedly positioned hanger support and a pivot mero-- ber connecting; said hanger and support, said hanger support being lsookcted to receive said pivot member and shaped to prevent endwise movement thereof, and door lock-actuating means.

ps7. ln combination in a car having a door, a door lock comprising a door-snpn porting latcli,y an osciliatory hangertlierefor, a flxedly 'positioned hanger support and a'pivot member connecting said hanger and support, said hanger support comprising; a .trouglplike socket portion 'for receivi said u Y n l d n pivotmember closed at its ends, saro. portion being interrupted and shaped to receive ar .end of said hanger, means cooperating with,

said socket portion 'to retain said pivot inem ber Y and door `loclr-actuating; means.

e8. .'ln combination in a ear having1 i. mere-rar, a

meeting said liangi: and sappi. t sain. na-nger support coinprisnw "n or 'pivot 1neinberreceivn to also nninterferingli* receive a. porcini-i ol id 'hanger and attachment inc me ior securing said lm i simpel-; in place adopted to pre vent eneivise movement of said pivot meinber and door lccieactiiating means.

4:9. ln combination in a having a door and actnatin i' means therefor. a door loci?.

comprising a latch, an oscillator7 hanger therefor and a hanger support with Winch said hanger has a pivotal connection and Col'np'sing means 'for semn said Suppor i11- pluceoin the om', mi anti-ulcton device for the. d0n r-act1u1tiug means, and a retainer therefor con'lbimi with said hanger-supscfrbsccuring ummm; said anti-friction de vice being adapt-@ 1 o be nselted in and my lmrred from said rammel.' only when said Securing 'means is dsassociaved with that which it s Secured to, and door Mok-actuating means.

In witn'fes whereof 'I have hereunto set my hfm.

JHN M. ROHLFNG. 

